Liquid-soap dispenser



July 17, 1928. 1,677,750

J. M. DABROWSKI LIQUID SOAP DISPENSER Filed sept; 9, 1919 4A Arm/mfr,

Patented Julyy 17, 1928.' l

UNITED STATE JosErrr 1vr.

COMPANY, OF NEW YORK, -N.

nABEowsKr, or BROOKLYN,v NEW YORK, AssreNon rro MoonE BROTHERS Aoonronn'rron '0E kNEW Yom;

LIQUID-soar DISPENSER.

Application 1ed September 9, `1919. Serial No. 322,637."

invention relatestoliquid soap dispensers, and more particularly to atype thereof wherein a large supply of soap` 1s stored in reservoir andconveyed therefrom to a plurality'of valve controlled d1scharge nozzlesadjacent differentv Wash basins, thus avoiding the waste andinconvenience incidental to the frequent refilling of a separatedispenser adjacent each basin.

While separate dispensers of the character above referred to areextensively used, there have heretofore been devised-two types ofdispensers lemploying aY single reservoir and a plurality of nozzles,one of which employs a tank closed to atmosphere, nozzles so constructedas to deliver or admit air to the tank with each actuation thereof, thusrelieving the sub-atmospheric pressure Which is developed in the tank bythe wlthdrawal of soap therefrom and theyother of which employs asimilar tank, but depends for the feed of the soap upon air pressurewithin the tank. Expedients of this character .have been found essentialin this art mainly because of the substantially 'non-compressible natureof the material being handled, the necessity for segregating a smallvolume thereof and discharging it forcibly through a delivery nozzle,and the difficulty of preventing airv vents in-the delivery mechanismwithout resultant leakage and waste. There is also the difficulty thatthe flow of the soap tothe dispensing kvalve mechanism must besuiiiciently rapid to ensure the delivery of soap with quickly repeatedactuations of said mechanisms.

lVth these conditions in mind, I have provided a liquid soap dispenserwherein a plurality of dispensing valve mechanisms are fed from onereservoir or tank, each of said mechanisms being so constructed thatsoap will flow freely by gravity to said mechanisms, such flow beinginterrupted with the actuation of the mechanism and beinginstantlyvresumed, as the mechanism returns to normal. With a mechanismmade in accordance with my invention, the tank is so j vented as toalways maintainatmospheric pressure therein, andl no air flows throughthe the valves to the tank with a resultant delay in the resumption ofthe full flow of the soap after a charge has been delivered-by saidvalve mechanism. v

and j distributing pipe system from Furthermore, the valve mechanism isso constructed as to provide a valve controlledy supply chamber of a-capacity to afford a volume of soap adjacent the delivery valvesufficient fora number of charges, ythus permitting quickly repeatedactuations ofthis valve without likelihood of a failure to deliver soapwith each actuation thereof. This chamber and the intakeandpdeliveryport. vtherefrom are so arranged as to affordan air cushionofsutlcient volume to permit the free movement of the valve, anyreduction of pressure within this chamber resulting from forcible,positive'ejection of the soap merely serving to increase the flow of thesoap, thereinto with the closingof the delivery, and the'auftomaticopening of the feed, valve. 1

' In a dispenser made in accordance with my invention, an ample supplyof soap is always present ladjacent'each delivery mechanism so that allof said mechanisms may be actuated simultaneously without likelihood ofa failure. of any of them tol deliver an adequate supply of soap.

- The invention consists primarily in a liquid soap dispenser,embodying` therein a tank having an opening thereon to atmosphere,distributing piping including a plurality of vbranch pipes, and a valvecon,- trolled delivery mechanismV connected with each 'of said pipesconsisting of a casing having a discharge nozzle, a partition having anlintake port therethrough and' forming a supply chamber adjacentsaidnozzle, a valve ycontrolling said nozzle, an actuating stem therefor, aspring acting thereon, a second valve controlling said intakel port,andl operative connections between said valves whereby with theopera-tion of said first named'valve, said other valve will be and insuch other novel features of construction and comb1nat1onof parts as areherein- `after set forth and described and more particularly pointed outin the claims hereto appended. Referring to the drawings,v Fig. 1 isaview showing conventionally a dispenser -made inv accordance with myinvention, S

Fig. 2 is a longitudinal sectional view of one ofthe deliverymechanisms; and.

Fig. 3 is a section on the line 3-3 of F ig. 2.

Like letters refer to like parts throughou the several views.

In the embodiment ofmy invention shownV ablemeansl for facilitating thecharging of i this tank may be provided, as the top a, it

beinO referable to have the tank covered to eXcludedust and dirttherefrom., The pressure within said tank, however, must be atmospheric,so that when I employ a cover,

as shown, I provide a vent opening a2 therein to the atmosphere.V

Leading from the tank a is a piping including a main feed pipe b andthedesired number of branch pipes b leading therefrom, six such pipesbeing employed in the structure shown. There may be; any desired numberof such branch pipes, the proportioning of the size thereof and of thepipe b being a matter of secondary importance by reason of the smallvolume of soap which will be required at any one time. Ample capacity inthe pipes should be provided however, because of the somewhat sluggishnature of liquid soap. i

Each of th branch pipes b has mounted on the end thereof7 by means ofany desired form of union, a valve controlled delivery mechanism adaptedto deliver an small quantity of soap with each actuation thereof, saidmechanism being so constructed vas to prevent the flow of soap theretofrom its branchy pipe while soap is being delivered, and to deliver soapupon quicklyrepeated actuations thereof, even though insufficient timebetween such actuations be afforded to permit a 'resumption of theflowof soap from the branch pipe into said mechanism.

Since leach such delivery mechanism is like every other, a detaileddescription of but one. of said mechanisms will be entered into.

The formof deliveryv mechanism shown in the drawings, comprises a casingc having a discharge nozzle d intermediate the ends thereof. Adjacentsaid nozzle d', I form vwithin said casing a: supply chamber e definedby a transverse partition f, and one end of the bore of said casing, thedistance between said end and said partitionl being such as to give thedesired capacity to said chamber.

The end of said casing adjacent the partition 7" is open andcommunicateswith a branch pipe soap being admitted to the chamber e through'a port fin said partition. Said' port preferably is towards the bottom of thepartition. to permit theV formation of an air cushion in the upperpartvof said chamber, without likelihood of the escape of air from saidchamber to within the pipe y The end of the `chamber c adjacent thenozzle d is countersunk to form a lsub-chainber e comprising al shortcylindrical portion terminating in a seat for a valve g of a Vdiameterhaving a fairly close tit with said cylindrical portion. The passagethrough the nozzle Z opens through said valve seat towards the lower,portion thereof.

The valve gv is carried by a reciprocatory stein` g mounted in suitablebearings in the casing '0 and in the partition f, this stein having anenlarged head g2 closing a spring chamber c at one end of said casing.Acting between the end of said spring chamber and said enlarged head isa spring i, the function of which is not only to'restore the valvemechanism to normal, but also to forcibly eject all or a substantial.part of the soap admitted to the cylindrical portion of the casing,through Vthe nozzle d, as the valve g is being seated. Beyond theenlarged portion g2 the stem g is provided with a push button g3 havinga facing of porcelain er otherrmaterial which. may be readily cleansed.j

Slidably mounted on the valve steing is a valve comprising a rigid headz' and a facn inge" of flexible leather, rubberorjother suitablematerial, adapted to seat against the partition f and close the port f"when the valve g is actuated to admit soap into .the sub-cylindricalport-ion of the casing ei.

Acting between the valve g and theI valve head i is a spring j of'sufliciently light 'tension, or suiiiciently short to normally permitthe val-ve z" to be unseated under the pre@- sure head within the branchpipe 5', while of suiiiciently heavy tension 'or lengthto cause theseating of said, valve with a slight opening movement of the valve g. Bymaking the head z' of smallerdiameter than the facing c", soap ispermitted to pass said valve during its closing-movement to within thechamber e'. j Y

The constructionv described will also ypermit a substantially fullclosure of the val-ve g before the valve z'- is permitted to open.

The operation of the herein described dispenser is substantially as`follows:---

Assuming that an installation is just being put into service, the tank Lis illedrwitli liquidsoap which flows freely through the distributingpiping t, thevarious branch pipes'Zi and the open end of each casing c.The head pressure of the soap will unseat the valve z", permitting thesoap to flowthrough the port j in the partition f to within the chambere. s

Since atrthis time the valve is closed,

.ino

the air trapped in the chamber e will form permit thev free openingV,movement of the valve g.V vrW'hilethe extent of, this cushion willundoubtedly vary during a long use of supply chamber e necessaryto-permit open- ,Y ing movement of the` valve g.

relieve the springy stresses therefrom so that substantially si` 'offeed of the soap through the When using the dispenser, the stem g ispushed inwardly by means of the button g3 and against the tension ofthespring h, with the threefold effect of unseating the valve g, to openthe passage of the `nozzle d-,kand admit soap to within the'subfchainber e (but without discharging soap through'the ynozzle CZ),and compressing the spring y' so as to seat the valve and close theportf.

As the pressure onthe button g3 is relievevd, the spring h' will imparta quick return or outward movement to the stem andits valve g, trappingsoap in- 'the su chamber e adjacent thev nozzle d and forcibly ej ectingit through said nozzle into the palm of thehand of the user. t

The return ofthe valve from compression multaneously with the seating ofsaid valve, or instantly thereafter, the valve i-i will be unseated bythe pressure from the soap within the pipe Z9', and soap, to replacethat delivered, will flow into the chamber e.

lf the user should repeatedly push the button g3 with a rapidity sogreat as to prevent the unseating of the valve i as described, soap willnevertheless be delivered with each actuation of the valve g, since thechamber e is of a capacity to supply a number of charges without beingrefilled from the tank a. f

Should the' air cushion be sov reduced in volume as to have a tendencynot to permit sufficient displacement of the soap in the chamber e, itisapparent that sufficient soap would be forced through the port f intothe pipe Zi to afford the desired displacement space.

ln order Jfosecure the necessary rapidity piping b and its branches b',it is necessary that the tank a be open to the atmosphere, particu larlyas no air can enter said pipes through the delivery mechanism.

it is not my intention to limit the invention to the precise details ofconstruction shown in the drawings, it being apparent that such may bevaried without departing from the spirit and scope of the invention.

Having described the invention, what I claim as new and desire to haveprotected by Letters Patent, is

1. A liquid soap dispenser embodying therein a tank having an openingtherein toV the atmosphere, distributing piping including a plurality ofbranch pipes and a valve controlled delivery mechanism con-l thatdisplacementv of the soap in theV gf to normal, will an intake portadjacent nectedwith each of'vsaid branch, pipes con-I sisting of' asubstantially horizontal casing,

a substantiallyfvertical partition having an intake portV therethrough,and forming/a horizontally extending supply chamber, one end of saichamber having a recessed portion formingA a sub-chamber communicatingwith said supply chamber, a nozzleleading from said vsub-chamber, avalve movable in said sub-chamber and controlling said nozzle, anactuating stem therefor, a spring acting thereon, a second valve seatedwithiny saidv supply chamber and controlling said intake port, andoperative connections between said valves, wherebv withthe opening ofsaid first named va ve, said other valve willbe closed, and with theclosing of saidv first named valve, said other valve will be opened.

2. A liquid vsoap dispenser embodying therein a tank having an openingtherein to the atmosphere, distributing pipin including a plurality ofbranch pipes an a valve controlled delivery mechanism connected witheach of said branch pipes consisting of a substantially horizontalcasing, a substantially vertical partition having an intake porttherethrough, nand forming a-horizontally extending supply chamber, oneend of said chamber having a recessed portion forming asub-chambercommunicating with said supply chamber', a nozzle leadingfrom actuating stem therefor, one end of whichv i 100 is mounted in abearing opening in said partition, a spring acting on said valve, asecond ,valve slidably mounted on said stem and controlling said intakeport, and a spring seated between said valves, whereby with the openingof said first named valve, said other valve will be closed, and with theclosing of said first named valve, said other valve will be opened.

8. A liquid soap therein a tank having an opening therein to theatmosphere, distributing piping including a plurality of branch pipesand a valve controlled delivery mechanism connected with each of saidbranch pipes consisting of a substantially lhorizontal casing having adischarge nozzle, partition adjacent one end of lsaid casing forming ahorizontally extending supply chamber adjacent said nozzle, ,and havingwhereby air is prevented from flowing from said chamber into said branchpipe, a valve controlling said nozzle, an actuating stem therefor, aspring acting thereon, a second valve controlling said intake port, andoperative connections between said valves, whereby with the opening ofysaid first named valve, said other valve will be closed, and with theclosing of said first named valve, said other valve will be opened.

the bottom thereof so i dispenser embodying a substantially vertical n4. A liquid lsoap dispenser' embodying therein ataznk havingr a-nopening therein to the atmosphere, distributing piping including aplurality of branch pipes and a valve controlled. delivery mechanism connected with each oi' said branch pipes consistingrofa casing'having adischarge nozzle,-a partition adjacent one end of said casing` forming asupply chamber adjacent said nozzle,and having an intake port adjacentthe bottom thereof whereby air is prevented 'fromzowing from saidchamber into said branch pipe, oneend of said chamber having a recessedportion forming a subcham'ber communicating with said suppljT chamber,.arvalvemovable in said sub-chambei"v and controlling said nozzle, anactuating' stem therefor, a spring acting thereon, a sceond valve seatedWit-hin said supply chamber and controlling said intake port, andoperative connections between said valves, whereby with the opening' Yotsaid lirst named valve, said other valve will be closed,I and with theclosing of said rst named valve,fsaid other valve will be opened.6

5.A liquid soap dispenser Vembodying therein al tank havingv an openingtherein to the atmosphere, distributingl pipin ing a plurality of branchpipes and a valve 'controlled delivery mechanism connected with each ofsaid branch pipes consisting of a casing, a partition adjacent one endof said Vcasingrforming a supply chamberand having an intake portadjacent the bottom thereof whereby air is prevented from Howing `fromsaid chamber intov said .branch pipe, a recessed portion forming lasub-chamber eommunicatmg with said supply chamv ber., a nozzle leading:trom said sub-chamber, Y

a valve movable in said sub-chamber and controlling said nozzle, anactuating stem v l i n Ya therefor, one end ol' which is mounted in abearingopening in said partition, a spring,YV

1919.v j j JOSEPH M. DABRoWsKi.

o includ-

